function restParam(parameter1, ...restArgs){
  console.log(restArgs.length); // Logs the number of arguments that do not have a corresponding parameter
  console.log(restArgs[2]); // Logs the 3rd argument after the number of arguments that do not have a corresponding parameter
}

restParam(1,2,3,4,5);
// Log would be as follows
// 4
// 4

// 4 is the number of arguments that do not have a corresponding parameter
// 4 is the 4th 3rd argument after the number of arguments that do not have a corresponding parameter